So, there is this one gold-badge holder ... who occasionally comes and scrubs that tag, and closes questions as duplicated.
My gut feeling is that 90% of those votes are correct, but from time to time they are not. When I notice those by chance, I put in a re-open vote.
But as said - that happens "by chance". Unless I am mistaken: when I turn the Activity profile of that user - I don't see the close votes under "all actions". And the "review" panel only shows postings that user worked on in review queues.
Thus: is there a way to find all those questions that were closed-as-dup by some single, specific user?